2004 Boxster S
I finished my winter project of installing the 4 stalk controller so as to enable cruise and the OBC. I followed the directions as laid down in "101 Projects for your Porsche Boxster", "986 Bentley Service Manual" and the web site Renntech.org which has a wealth of information for this upgrade. Now I just have to get to an Indy Shop/Dealer to activate both through the computer.
I took my time for fear of breaking something and this took two days, no breaks. If I had to do it again probably 4-5hrs. My garage temperature was around 5 to 6 C so plastic parts aren't as pliable.
When removing the instrument cluster all the documentation tells you to lift straight up after removing the 2 screws behind the telephone speaker and the hazard flasher. They don't mention that there are 5 plastic tabs helping to hold the instrument cluster to the dash. Likewise with the Trim Ring around the steering column and the dash, it is secured on top with 2 screws and under the steering column there are 2 plastic tabs, lift straight straight up.
The condensed wire plan is;
2003-4 Boxster Cruise:
Plug C (Grey) on the Instrument Cluster Pin 17 - Stalk Connector Pin 1
Plug C (Grey) on the Instrument Cluster Pin 4 - Stalk Connector Pin 3
Plug C (Grey) on the Instrument Cluster Pin 1 - Stalk Connector Pin 4
Fuse B7 - Stalk Connector Pin 2
2003-4 Boxster OBC:
Plug C (Grey) on the Instrument Cluster Pin 23 - Stalk Connector Pin 2
Plug C (Grey) on the Instrument Cluster Pin 22 - Stalk Connector Pin 3
Plug C (Grey) on the Instrument Cluster Pin 21 - Stalk Connector Pin 4
Plug C (Grey) on the Instrument Cluster Pin 24 - Stalk Connector Pin 5
Earth (ground) - Stalk Connector Pin 1
I've attached a few photos that may help someone in the future. I have more if someone is interested.
5 metal sockets in dash and 2 metal sockets under steering column.
Back side of Instrument Cluster up side down showing 5 plastic tabs
2 stalk compared to 4 stalk
