|
On mine there were two hot lines into the unit. One of them (the thick red line in a 2003 harness) is always on, that goes to the line marked B+ (or +12). The other line is the ACC line, this one goes on and off with the key. I had to run a separate line for ACC. If the unit loses 12V in it will lose its memory.
__________________
2003 S manual
|