I also say bring it. Even if it’s not working, or working 100%. I mean if you really wanna blow money on a rental + mileage go ahead. But in all honesty maybe someone there can give you a fresh perspective on what you have… but that’s not possible without the car there. I went to a meet before with what I thought was a blown mid and during a demo someone suggested a bad RCA cable. Turns out they were right. Without that horrible sounding demo I probably would have spent a LOT more money on new speakers instead of another RCA cable.