Does anybody know where I can tap the Retained Acc Power (RAP) on an
03 GMC Sierra? I am adding XM radio and would like it to stay on with
I have been through the fuse box and the door fuse boxes but could not
find a RAP feed.
For those of you that are going to tell me "behind the radio", in 03
GM changed the design of the radio. It has 12 volt battery and a
switched/logic signal that tells the radio to go on or off.
From a brief look, I can't really see anyplace where there is an actual RAP
feed. The devices controlled by RAP are either internally controlled by the
BCM, or are controlled like you mentioned the radio is, by having a signal
sent to their module to turn on or off.
Robert Hancock Saskatoon, SK, Canada
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Was just looking under the hood of my new-to-me S-10 today. Noticed
in the relay center in the engine bay there is a RAP relay, maybe you
can tap it there, on the output pin of the relay...
On Sun, 04 Jan 2004 15:26:29 GMT, "hfraser"
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