Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Switch Help Needed


Recommended Posts

I need to wire in a modulator (yes I know but its MOST on an '04 40th). To fill up some of the switch blanks in the car I'd like to use the Porsche footwell light switch. My take is every switch in the car is momentary and operates a relay. No problem wiring in a relay but its not a good solution.

With a relay, when the ignition is shut off the modulator will hand the signal back to the radio tuner. Due to the mismatch in output voltage (iPod) when I restrart the car, the radio will be blasting. So, I prefer a regular on/off switch.

Are there any Porsche on/off switches available that fit in the blanks? Which ones are they?

If there's any interest, I'll post a parts list when I'm done. There are enough parts on order for two installs as my wife and I want some time in the car before we decide if we want a permanent mount or a long cable with the ability to have the iPod in hand at times. Plan 1: is the iPod mounted on a RAM iPod holder with connections going thru a Sik Imp and the iPod mounted flush on the bin with a little bracket I need to make that will attach (unseen) to the top side of the bin. Plan 2: install a firewire socket in the console bin. Power thru the guts of the Sik 12v charger (spike protection and filtering) will be wired to the socket as well as the audio leads to the modulator. To connect I will use the standard iPod firewire cable (6 pin male at the end). iPod sits in the bin with this approach. Either way I get clean(er) line level output without going thru what is essentially a cheap (has to be due to packaging) "de"amplifier at the headphone jack along with a cleaner install. While it might appear Belkin's Auto kit would be a simpler install, I'm afraid their little preamp will overload a modulator.

Also, anyone know if I need a ground loop isolator? I have one ordered but would like to avoid installing it.

Link to comment
Share on other sites

Thanks all,

I got the answer I expected though not necessarily wanted.

Looks like I have to educate myself on the relay side and see if there's one that remains closed, irrespective of power, until it gets another prompt from the switch.

Link to comment
Share on other sites

  • Moderators

When I put in air horns I wanted to use a normal Porsche dash switch to control which horns were on, or all horns on at the same time. I had done this on other cars with an oem switch but I ran into the same problem because the Porsche switches are momentary.

Not being the elctrical guy I contacted 996 owner Sandy who prepared several diagrams using the Porsche switch with a relay and with a latching relay. If you are not electrical you might want to contact Sandy as he really knows this stuff.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.