Problem - Deck turning off and on
 

I am installing a full system (Deck, 2 amps, 2 subs and mid range speakers) into a 1973 Buick Riviera...

I installed everything properly and I had a problem where the deck kept turning off and on...stays on for about 3-5 seconds, then turns off and cycles through it again....

I thought it was a problem with the deck, so I got a new one, and tried it last night.....works perfectly....I was listening to the radio while cleaning up the wires....So I turn it off and head home...

I get a call this morning saying that its turning off and on again....

Does anyone know why this may be happening????

You said you checked connections ? ground , power wire ? is it consistent time that it stays on for then shuts off or os ot intermittent?
because it may be a bad connection

You said you checked connections ? ground , power wire ? is it consistent time that it stays on for then shuts off or os ot intermittent?
because it may be a bad connection

what kinda deck is it, i know some alpines say about 4 years ago what shut down and power back up because of bad connection between the face plate then the head.