So my head unit isn’t putting out sound to half of the speakers and I was told this is common. I was thinking about putting in a modern head unit but didn’t know where to start. Any existing threads or how tos?

 

If you got aftermarket you'll probably want to get some new speakers too. Most aftermarket radios are made to be used with 4 OHM speakers. Your factory Rear speakers *might* be 4-OHM,... but the fronts will almost certainly be 10 OHM and not well-matched for an aftermarket head unit.

 

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Go to Crutchfield.com they will hook you up, they send everything you need to do a nice clean install with great directions.