NavarroOne

I'll check the link with great interest. I am interested in a harness, so I can plug and play as well as amp-up all the other speakers as well, provided it is relatively easy to run the wires from front to back and get to the HU to plug it in. Haven't yet seen any DIY description on running wires all along the vehicle!

As to my amp, I plan for a TNT T1000W/2 amp where the description reads "high level and low level rca" input so I take it it can also handle 8V..!

with this set, I take it no coding is needed from bmw to make it work?

oh, one more thing, do you have a set of connectors I could solder to the sws-8's so they can plug into the existing cables if i end up buying the above harness?

Technic

The specs of the TNT T1000W/2 are in the Internet... google T1000W/2. Running the extension cables is easy once you remove the seats, so you can tuck the cables under the carpet on the left side of your car.

No coding needed as you will be using the existing output signal as is.

You need to find out first how your woofers are connected to your system. In the 3-Series the 6-speaker Stereo system has the woofers connected in parallel to the door speakers. So to amplify just the woofers new wiring will be needed once disconnected from the front speakers. I don't know how your E60 Stereo system has the woofers wired.

NavarroOne

Wasn't planning on taking the seats out. On reconsideration, think I'll be better off just plugging the amp into the woofer outlet and plugging the woofers in again directly after the amp. Less trouble and expense and still undoable in the future if I want to go all the way.

Meantime, Earthquake's tech dept. confirmst that the TNT 1000 can handle 8V but you need to keep the gain at zero level.

Technic

How are you going to install the SWS-8 without taking the seats out?

NavarroOne

I was thinking I could get to the cabinet without ripping the seats out.

Technic

You cannot.

bruce_miranda

Depends what you mean by seats out. You can tip the seats back without disconnecting them but otherwise you have no hope of getting a sub in there without removing the seat nuts.

NavarroOne

that will do it for me, i.e. no need to disconnect with possible airbag problems etc, just undo a few bolts and tip the seats back to get to the enclosure

Technic

Thank you.

Technic

Improved harness is now available for Group Buy:



- add a trunk sub and/or power the underseat woofers with a separate amp, no need to cut OEM wires or harness itself
- quick underseat woofers connectors with 12AWG wires labeled for easy connection to your aftermarket amp outputs

New Group Buy price: $75 shipped for 5 or $70 shipped for 10 people...