I had problems with mine cutting out anytime i turned mine up. I’m running a JL HD 600/4 and 750//1 on a stock alternator and battery. About 4 months ago I unplugged the regulated voltage control and have not had any issues at all since then. I no longer have the fluctuating voltage, just a constant 14.
There is a space either above or below the molex to run new wire.
It can be a PITA!!.
Run a coat hanger from inside the door into the footwell and tape the new speaker wire to it and pull it thru.
I totally agree with Nasty. Bose systems are heavily EQ'd to work specifically with their speakers. In my opinion it's a total waste of time to install new speakers into a Bose system. They're still going to sound like Schiit. Installing an amp is relatively easy and decent ones can be had for not a lot of $$$. Might as well do it right the first time.
I have the same on my truck. I hope for your sake that you don't live in an area of salt on the roads in the winter. Mine are all pitted after just a winter and a half. My truck is only driven on the weekend and was rinsed very well with a pressure washer before being parked for the week.