khnitz

Here's the problem: with an aftermarket Blaupunkt radio, when the car is turned off, there is a momentary "blip" where the radio starts to turn off ("Go..." is visible of the Goodbye message for a moment), but then the radio stays fully powered on. I'm trying to help my friend sort out what may be wrong with his wiring that this would happen. The background: I'm helping a friend sort out the audio system on his 911 - it's a 1997 C4 that had the Hi-Fi sound option. When he purchased the car, there was an aftermarket deck in the dash and the amplifier connector had been by-passed (a total hack-job on the wiring). I repaired all the wiring back to its factory original configuration so that we could re-install the correct Nokia amplifier. At that time, he just wanted speakers on the rear deck. So those were left connceted, and a pre-amp unit (a VC1 from V8A - V8Audio) was installed out-of-sight behind the dash for a minimalist look. The factory radio mounting location was used to relocate the switches from the center console. too. Smash-cut to now, and with some changes in taste, the rear speakers have been removed and speakers are now in the front doors again. Also, a modern Blaupunkt stereo was installed. The "won't turn off" issue is the last thing to sort out this upgrade. I have verified that there is constant power (battery) and Ground at the proper pins of the radio, but what should be the switched ignition signal on pin 7 (in the wiring diagram, this line is labeled as "R" ?) is at a voltage just below battery (Battery=12.8VDC, "Ignition"=12.4VDC). It also measures a momentarily blip at key-off, but then recovers back to ~12VDC almost immediately. Any thoughts on what may be happening are appreciated! What else does the "R" signal line connect to? Could it be the result of a bad ignition switch or power distribution relay? In searching for an answer, those seem to come up as possibilities, but not with the symptoms he's seeing.

There are fuse taps and also pigtail fuses. I like to use the pigtail fuses as they fit the best into the fuse slot in the panel (since they're made from fuses). A spade terminal can work in a pinch, too - just make sure your accessory has an inline fuse on the power line.

Hi Loren, Neither of those worked. I'll include the all the details I pulled from the radio label, maybe I missed something: Large Bar-code serial number - 6625II015006075 Model - CDR220 BE 6625 Serial - 15006075 P/N - 996.645.126.10 This is a 2002 Boxster Thanks, again. Karl

Thanks!

Was helping a friend with his CDR-220 radio project over the weekend. After removing the radio to test some connections, we then reinstalled the radio and got the SAFE message :-) Serial number is 15006075 TIA for your help!

Following the thoughts here and the info at 6speed, I ordered up the Porsche PCM3 iPod/USB/Aux pieces from Suncoast. I should get those parts soon and I'll post on the final results. Probably the toughest part is going to get a dealer around here to enable the PCM for this accessory - none of their parts departments are aware that anything other than the Porsche RF solution is available, right now.

Yup, very familiar with that. I typically leave the GW500 unit behind the radio in the Carrera/Boxster/Caymans. This one doesn't seem to feature CD changer retention, however (only 1 set of MOST lines shown) - so it probably didn't have to pass through to the front trunk.

ps. I would suspect that the shorter the fiber optic cables are, the less problematic, so avoiding longer cables should be paramount. [/b] Actually, that's why I prefer to mount them in the cabin. I can connect right behind the radio. I just don't see many people who want to hang onto a CD changer once they have an iPod/MP3 player in the car :huh: Also, I've found that locating the GW500 in the cabin allows easy access to the iPod, USB stick input and L/R aux input (I put all that in the glovebox). If you're going to be switching between the GW500 and CD changer, you need to have the service mode switch handy. Thanks for the help offered up here!

cant remember if the battery *must* be removed but I wouldn't fear any issue from disconnecting it (assuming you do it right) - the PASM Failure message will come up when you reconnect and start but it will reset and be fine within minutes of driving also, while not knowing what is going on, if your running wires, one may assume your doing something electrical and perhaps that disconnecting the battery is a good idea anyway good luck I certainly don't disconnect an ECUs anymore if the ignition is in the On position - too many Airbag DTCs are set that way - particularly on the newer Volvos (what the heck does an HVAC control panel have to do with the airbag, anyway? :P ). I'm routing the fiber optic lines from a Dension GW500 out to the CD changer in the front trunk for CD changer retention. Thanks, again!

Great, thanks! Would the battery have to be removed to gain access? I hope not (as I know disconnecting the battery causes a whole bunch of trouble codes to be set in various ECUs... :o

there is OEM kit that works well, charges IPOD, USB aux input. cheapest of them all at around $400 But is that actually on the MOST bus, or an FM transmitter? A friend who had the OEM piece (for the PCM3) had the dealer pull it out - he was not happy with the quality of the experience compared to the Dension GW500 he had in his last Cayenne (with PCM2.1).

Does anyone have experience with adding a Dension, Nav-TV or other iPod/aux input solution to the new Cayennes with the PCM3 headunits? Although I saw snippets of news on a solution for the PCM3, there is no direct info at the Nav-TV or Dension sites.

I'm helping out a friend and need to pass a couple of wires between the forward bulkhead/firewall of his 2008 C4S cabrio. Basically, I need to pass those wires from the center console area through to the front trunk. I've searched around here a bit, but haven't found a clear explanation or best practice recommendation. Your suggestions/links are appreciated!

Make your switch connect the Mute pin to Ground. See here (the diagram is numbered looking into the connector on the radio):

This is already from a while ago. Dension products are still available here in the US, just through a different distributor(s).