I thought its my turn to contribute something to this forum.
Last week I finaly got time around to install a 10" JL sub in a rear of the deck. Its very simple and you can run an aftermarket amp as well.
The bass is very clean and punchy without any rattles, low base will shake you nice and sound quality as great. I have a 2 4" jl's on each side of the sub.
Step 1 remove your factory sub from stock location.
Step 2 rip out the speaker cone frome the speaker(you should end up like in this pic)
Step 3 Cut off the 4 structual suport arms from the magnet to the O-ring(Made out of aluminum, becarefull not to damage the plastic mounting tabs (You'll reuse the O-ring part)
Bellow is pic of the subwoofer thats going in.
Step 4 predrill a pilot holes on a top of a suboofer plastic O-ring coordinating with aftermarket subwoofer mounting holes.
Step 5 (Is optional and a longer step)I separated the plastic top ring from the metal portion of a O ring, sanded down both sides and glued them back with epoxy to solidify and seal everything.
The SC400 stock heavy rotor is placed on top for superior adhesion.
Step 6 Place a subwoofer on the O ring, making sure everything is even on each side, and using a short self mounting screws attach the sub to a ring assembly by simply using a screw driver
Step 7 Reinstall the sub assembly back in the original the location, and plug in the harness.
The cover does not fit over an aftermarket sub, I am working on that right now
This is whats pushing it, I removed the stock amp and cd changer to mount my Alpine mrp500
The subwoofer clears gas tank by a 1/2" to 3/4".
I didnt want a box in the trunk because of the weight and space, so this was the only way to go.
I am glad I did it!
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2K SC400 BFI+K/N//SUPRA TEINS S TECH+BILSTEIN HD//18x8F,9.5R ENKEI RPF1//LS400BBK+SLOTTED//MAGNAFLOWS//MOMO ST. WHEEL//DENSO //ALPINE //DDM HIDS//AMP+JL10"SUB///BATTERY RELOCATED//5SPEED ON THE WAY, ONE DAY!!
i did have a 10" memphis sub on the stock location but sold it..all i did was remove the stock one and drop the memphis into the opening, i didn't even screw it down. it never moves around or anything like that and it clears the stock cover..sounded great w/ a cheap amp. had plenty of space left between the gas tank, about 3"-4".