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Old 03-06-2008, 05:58 PM
harjothundal's Avatar
harjothundal harjothundal is offline
E65/E66 Helper Man.......
Location: Northern California
 
Join Date: Jun 2007
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Mein Auto: BMW 745 Li
Quote:
Originally Posted by sunny_j View Post
yea completly different. you dont need a switch you just put the ground and parking brake wire together.
this is not entirely true... Older navigation and tv systems worked like you mentioned, however alpine had an advanced system that required you to hold the brake, and press/depress the parking brake so the system knew the wire wasnt completely grounded... Thats what the modules were, the relays would detect power and then actuate the brake bypass sequence automatically... Most newer systems nowadays work this way, and navi based systems use the gyro sensor to detect if the car is moving while playing video... That too can be disabled, but requires solder joints on the main board...
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