when i had done my system i did this

https://g35driver.com/forums/audio-v...se-system.html

but im chnging out my radio to a double din

but keeping my bose speakers

should i leave my bass amp connected using that method above or should i just wire my bass suub to directly to my new double din in the back

which will sound better thanks

 

I'm not sure what the link you listed leads to cause I can't load it for some reason, so I'm not exactly sure what you mean. But it sounds like you added a sub to your stock Bose system.
If you're swapping head units for an after market now one all you need to do is:
- wire up your amp with power to the battery, ground to the chassis, remote and rca's to the deck
- speaker wire from the amp to your sub(s)
- have a look at wrathernaut's resource list, the very first sticky in this forum, for a list of other necessary parts and how-to's regarding using them.
Hope this helps!

 

Wire your sub directly to the new headunit, it'll sound WORLDS better by bypassing the bose amp.