Originally Posted by
dedwards0323
Not questioning your thought process above because I have a respect for your knowledge regarding electrical circuitry in the Crossfire, but the wiring diagram for the stereo system states that the Fuse 23 leg feeding the amplifier is HOT only during ON/RUN, and START.
In what manual?
2004 service manual says "Hot at all times":
2005 Service Manual says "Batt(ery) Red" which is, again, hot at all times:
Looks to me that the Fuse 8 leg, which is a direct feed from the battery to the radio, does provide power back to the amplifier via terminal 4.
No, that feeds the AM/FM head:
And there looks like a hot connection between circuits Fuse #8 & Fuse #23 via terminal connections 4 & 9 on the amplifier. Several cross-feeds going on if I read the wiring diagram correctly. Is that the case/ Comments?
This does not describe the wiring of the head and amplifier at all. I do not understand where you are getting this. Notice that "Pin 4" is meaningless, "Pin 4 of connector A on the Radio" would be how you'd describe the above feed to the AM/FM head - without the letter designation, it's hard to determine what pin you are talking about. But there is no feed of power from the AM/FM head to the amplifier. There IS an enable from the AM/FM head to the amplifier, as well as the actual power feed to the antenna preamp, as shown below.
