So the other day I sadly blew a sub in my a4. I'm looking at replacements right now and ive found these: JBL GTO628 Grand Touring GTO 6.5" / 6.75" Car Speakers I do have the Bose system in my car, and from what I understand this system is really particular on the speakers you use. Those JBl's have a 2ohm impedance like the Bose system requires, and they are the same size as my stock subs, so I shouldn't have any problem with swapping the two am I correct? I Just wanted to double check before I pull the trigger.

Also, my front door speakers are rattling. I hear they have a problem with the glue coming undone which causes this sound. Are they worth trying to reglue, or should I just buy replacements? And if that is the case, do you have suggestions for speakers?

Thanks for taking the time to help a fellow Audi owner out!

 

The JBLs should be fine, but you're only going to get the stock wattage to them. You won't get max (or possibly even RMS) wattage to them. You'll have to compare the specs to be sure, but I'd use them if I had them.

For the price, I'd replace the front door speakers, since you're only replacing the sub and not the entire component system.

Front speakers are going to be harder to find. They're 2 ohm and they're smaller than 5.25 (regardless of what you may have heard some people say).

Look for a stock (used) replacement on ebay, but don't let the seller bend you over.

G/L