Ok my 02 has UQ3 Enhanced Performance Audio but NO Bose. The sub functions fine, what is the standard sized speakers for a Tahoe with this option.

I'd like to get bring the stereo back up to par, don't need a thumping system just want to listen to music clear and above road noise with say windows down at around town speeds.

So are speakers 5.0" or 6.5" or some crazy oddball since I see mention of adapters on Crutchfield's web page.