Request for help: diagramming a relay

[Tamago]

if your installer wired your radio properly you shouldn't have this problem. there is a 12V constant already in the wiring harness AT the radio. this is what keeps the radio memory intact.

[BailOut]

Originally Posted by Tamago

if your installer wired your radio properly you shouldn't have this problem. there is a 12V constant already in the wiring harness AT the radio. this is what keeps the radio memory intact.

This is not an issue with the radio's memory but with it being power cycled when a key start occurs. This is its expected behavior as the whole accessory bus is cut out during a key start.

I am attempting to bypass that by drawing power directly from the battery but only when the 12V accessory bus is powered (so that it will turn off when I turn the key to the off position).

I installed it myself, btw, and it works as intended. Now I'm trying to take it beyond what was intended.