There are two power wires to your radio. A constant (duh) and switched. Meaning it is hot when the key is in any position but off. Be sure to wire into the constant power if you need the radio to maintain memory. Just be sure to turn the radio off when you get out!
The lighter outlet is alway's hot and should be a clean source of power too.
scoot
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"If we weren't crazy,
we'd all go insane."
JB
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Honey, did you move the car?
-- A typical morning at Candlewood suites.