911Joel

Thanks for the write up. Did it today using these instructions.

I took some pics that may help someone.

It took me a while to get the key cylinder out. You have to get your "paperclip" back about 2 inches. Also when you remove the cylinder keep the paper clip in and do not remove it or you have to redo it when you put it back in.

Picture with clip in out ring hole. I had a key witout the key head. You can probably do it with a normal key but the black head would get in the way a little.

Remove entire cylinder, just by pulling out when released.

Im not a big fan of leaving a bolt out as he does in step #10. It is really the only bolt in the housing. The pin does hold it as he describes but I still perfer to put everything back.

You can actually get to the nut area from underneath the dash. Its a little hard to do if you by yourself but I stuck a socket wrench on the top of the bolt while I threaded the nut on lightly from below.

Then you can the use the socket wrench from the top when the nut gets a little tight.

He mentions in #2 of installing that replacing the ignition housing back in is the hardest part, but I think his part must have been a hair oversized or something. Mine clicked right in, literally took 2 seconds not 20 minutes.

Its a pretty easy DIY (other than having to have quite a bit of patience working to get some of the bolts in and out in tight places) and these along with the vent removal instructions are really good.

For the record you can use an existing M680 connection in a M490 amp.

When I first removed the cable I had removed a wire from the pin. When I reseeded all wiring both amps worked perfect.

It was interesing to hear with the DSP amp. If it had more power to drive the speakers I think it would have sounded really good. I hooked up the HPAS amp which I think is like 720 Amps. Sound was incredible.

Much improved over the DSP system.

http://www.renntech.org/forums/index.php?showtopic=19902

Thanks!! Perfect info. I need to start searching in 986 more often.

I went to a stereo installer here in Dublin and he said I would need to get the part from a Porsche dealer, I went to the Porsche dealer and said Id be better off getting it from a stereo store.

To me it looks like a pretty standard connector. Does anyone know where I can get the 18 pin connector that plugs into m490 and m680 amps?

Ive asked around on a few forums now too and no one can provide an answer. I guess this isnt a common need but I would figure this should not be something difficult to get.

Well I found the error of my ways. I should have done a little more research prior to installing :)

Anyways I have DSP M680 and this will only work as M490. So I going to remove the DSP.

I was assuming I just may have to switch a few leads on the amp cable but looking over the schematic Im not quite sure how to go about it. I guess one of the first things I need to figure out was if the +12 from the stereo is not installed in lieu of the DSP +12. Or is it just a matter of removing the DSP for this to work.

Any help/advice?

Heres the chart:

Check the ground path. If you have a good known power supply and the remote trigger is working then confirm the ground.

Ground seems ok. I just reversed testlight where I hooked the one end to postive at the battery and then poked the ground wire near the amp and it lit up fine.

How would I check the remote trigger?

So I installed the Porshce high performance audio sytem this weekend. It was a little more work than expected.

The one problem I am having is the amp does not appear to be working.

The hpas amp has 4 indicator lights, one of these being power and it is not lit.

Ive verified power is in the wires all the way to the amp. The fuse for radio options (d9) is ok.

Any ideas where else I should look?

Becker CR-210

PR-VERS 3297

Serial WS023721

Try 9271

or

9269

So far Ive gone from 9269 to 9273 and have not had any success. Should I just keep trying from 9260-9280?

The lockout has been slowing me down.

Years ago Porsche issued a bulletin on how to install the HPAS.

The TSB was actually here on this site in the TSB section, I made a donation and became a contributing member.

This is exactly what I needed.

Thanks adiro, your english is good enough.

I cant seem to find the SB or any info on installing this.

Anyone happen to have the SB or know where I can get it.

ok,,,

I was trying to install yesterday... I could only install the loudspeakers of the roof

Ill assume you meant dash though having roof speakers may help with the sound :)

Was there a reason you did not install the amp? I was hoping this would plug in without modifications.

Also what was your impression between the dash speaker you removed and installed? Bigger magnet? Better cone? Crossover on both?

Is there any info or DIY on how to install the Porsche High Performance Audio System?

Or if anyone has installed this could they give some pointers.

Im guess my biggest question is wondering how the door speakers get installed.

Also is the amp a direct plug and play with the existing amp?

Becker CR-210

PR-VERS 3297

Serial WS023721

Narrow body cars need:

Front 50-52 mm offset

Rear 65 mm offset

hmm...so does that mean these rims would cause issues as well:

http://www.pcars.com/porsche_parts/shop.ph...-lip/p_147.html

Ive been looking at different options, but I had been told those would fit no problem, but they dont fit under the specs you posted.

Ive searched and saw the charts and numbers for 18" offset but I cant seem to find much for 19".

Does anyone know if rims with these offsets are ok for a C4?

8.5" Front, Offest ET47

10" Rear, Offset ET56

Thanks

Why on earth would you jump to the conclusion that someone would go to the trouble of creating identical replicas of Bilstein PSS9s?

Well for starter he posted pics of 2 different model #'s. I have had a few pairs of Billsteins and currently have them on my M3. The model # is the same on all of them.

Second you can always look up model numbers at the Bilstein site to see what they refer too:

http://www.bilstein.com/mistore/bindex.php?company_id=100484

In this case one of those model #'s did not resolve to anything and the 2nd actually said they were from a pss kit.

Third last year there was a huge market or replica Tein springs and coilovers that went un-noticed for quite some time.

n

Ive exchanged about 8 ebay messages with the guy. He cannot even tell me what they came from. First he said they were a friends that he got then he said he got them from Pelican parts. He never once answered what model they were for. He goes on to tell me hes a racer and all kinds of other irrelevant stuff though.

I dont think this means there is a company making replicas. I think they guy pieced together a few Bilstein kits and stamped it with some fake #'s and is trying to screw someone out of some cash. He also may be an idiot and someone screwed him and he doesnt realize it.

well I contacted the seller and he just has lie after lie.

First he bought them from a friend who has a gt3 (not sure why he had to tell me that, maybe to give me the impression hes got firends with porches).Then he siad he got them from pelican parts. Then when I called him on it and said look up those numbers at Bilstein this is what he said:

"Just confirmed with Bilstein that those #'s have NO MEANING to the layman. This is a complete bolt on kit. Unless your a dealer what you see is usless!! Go ahead and find an authorized dealer *******. Ask them and see what they say. "

LOL!!!!

Beware if this guy on ebay.

Ive been looking for coilovers and I saw these PSS9's on ebay:

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...em=150240483908

In the picture he has 2 different model numbers

F4-BM5-6803-H1

F4-VM3-5252-HO

Where the actual model from what I can tell should be F4-GM5-8846-H0

I contacted the guy and he said they are legit with less than 600 miles. It seems to me like total BS. I have Billsteins with 10K miles on my M3 and they dont look that beat up, I dont understand how there could be different model numbers for the same set, and even worse model numbers that dont seem to match up to anything.

It all to fishy to me so I will stay away. Is there something Im missing?