You can just get a headunit with an Auxillary Input on it. Many these
days include this feature. They do make some "Ipod compatable" ones
that actually control the ipod, but i found it made more sense to buy
one with an aux input, as i can then hook a laptop up to it to play
movies while camping. I got a cheap headunit at Bestbuy on Black
Friday that meet all my requirements (aux input, volume knob instead
of buttons, MP3 capable) for like $50 and it included 2 6.5inch
speakers which i'm going to install in the door panels.

On that note.....
Does anyone know of a lowprofile grill,
or has anyone installed them lower in the door and used crossovers to
make them work as Subs and use the original speakers for the "high's"?

-Craig
'85GL Sunroof