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My first DIY for the LS430...Here comes the BOOM...

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Old 05-27-14, 08:18 PM   #211
Brewmyown
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Quote:
Originally Posted by ssdjoey View Post
this might be a dumb question but if you knew which wires that went into the amp were the power,ground,and remote could you use those wires for an aftermarket amp set up?
No you can't use the existing power wire. It needs to be connected directly to the battery but believe me, that's the easy part. All pieces just snap on and off from the back seat to the front dash along the door sills. The ground connects to any boot you find in the trunk (there are plenty). The line out convertor (LOC) connects right to the existing 4 subwoofer wires and you can get a switched connection (turns the amp on when car is on) from a fuse box in the trunk under the lift up panel on the left side of the trunk.

The hardest part of the whole process is getting the back seat and rear shelf cover off (which you need to do to change or repair the sub anyway). Install it all and tune the LOC and amp (good easy to follow instructions on crutchfield.com site) and you have some good sounding (and feeling) bass. The amp I used was cheap, guaranteed for 3 years and comes with a remote that I ran while I ran my power wire and installed it under the dash so I could adjust the sub volume (if needed) easily.
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Old 05-27-14, 08:23 PM   #212
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I'm likely going to cut the sub opening a little and try a 10" sub. There's plenty of room (I don't have a UL model) in the rear deck to opening it up for a 10" sub. I wish I would have taken it apart before buying the sub because I would have bought a 10" sub to start. Don't get me wrong the 8" has plenty of boom. I just like experimenting.
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Old 01-30-15, 12:10 AM   #213
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Thanks to this thread, I installed a Polk Audio db840DVC sub, and it works. Wired in series, for 8ohm resistance. Getting some rattle when I crank it up, so I'm going to pull it back out when I have some free time to try and dampen the vibrations. Seems to be hitting the mounting brackets when the cone makes big movements.

I really advise taking some pictures of the stock sub with the brackets attached before you detach the sub. The brackets are not fully symmetrical, and the wire connections have to be on the same side as the original. I ended up having to pull the Polk back out to get the brackets right.

Also, I had to buy a pry tool to get the rear deck clips out because they were in so tight.

Nice to have some bass again!!!!
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Old 01-30-15, 12:10 AM
 
 
 
 
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10, 2002, 2004, 430, amp, amplifier, audio, blowing, jl, levinson, lexus, ls, ls430, ml, replacement, subwoofer

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