I use Ultimate Ears Boom 3 & Megaboom 3 for tunes. Good enough sound-they’re competing with 35’s, healthy exhaust and topless cruiser. They have excellent battery life and they’re water/dust proof. My son likes to test the water claim and it’s true.My 78 had a newer Jensen deck in it that required the dash to be cut a little, so the oem radio delete plate wasn't an option. A sheet of 1/8" abs, a hacksaw and a little mounting tape and the Jensen is history. Now I just need to install the door panels when they come in (holes in those too ... thanks PO) and find a nice little bluetooth speaker to sit on top of the dash. No need for great sound in this thing ... just some tunes will do.
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