Bubbasgoped

Does your HU not have RCA's? Or is that what you are talking about?

I just put a new system in my GC on last Friday! I just pulled the HU and there is plenty of holes to run RCA's down by the pedals. The toughest part is running speaker wires through the stock rubber protector between the door and cab.

ALWAYS use thicker wire than you think you will need. Just in case you upgrade down the line!

No4x4Yet

If you have a sub you should be powering it off an amp so you'll need to run RCAs like Bubba said. Just hook them up to the deck and run em anyway you can through the dash and then under the sill plates. Doesnt really matter where they go long as the make it to the back.

93_cherokee

Well I got my sub installed, now I just have to buy a amp

Bubbasgoped

Your powering a sub off the HU?

Please say no!

93_cherokee

yes....... I don't have a amp D'=

No4x4Yet

Dont waste your time. The head unit wont have enough power to move such a big speaker. Thats why you buy and amp. Plus the signal from the head unit is high and low, you just want low to a sub. You can get a decent sub for around $150, just save up and buy one. You might even ruin your head unit trying to force it to power the sub.

93_cherokee

it's only a 150 watt dual 12" nothing to sepctaculer and I don't have any $

Bubbasgoped

You could end up blowing your Head Unit. I would be willing to bet your going to end up ruining the sub coil too!

I guess enjoy till you blow it all up!

FYI...

4ohm and a 8 ohm speaker pulling of a single HU channel! Think about the load you are pulling off that channel! Subs are designed to have a low pass filter! You need to do a little more research!

No4x4Yet

Stereo HU put out 50watts if they are really good! And like Bubba said the load your gonna put on the head unit it gonna but it out. It not ment to run a 12" 150watt sub. Save up for an amp cuz it'll be cheaper then having to replace your HU and subs. Check out ebay or craigslist, they always have that stuff cheap.

93_cherokee

any of you know how to run the power cable from he battery to the back of the jeep for the AMP =/ had to break the bank and buy one, was saving for college, was only 100$ nothing to major

Bubbasgoped

Drill through the fire wall. I have my on the passenger side toward the left of the foot well.

Bubbasgoped

Thats 50 max not RMS huge difference. Most good HU's are in the 20 - 30 RMS range, and that is on 14V most of the times, so under normal conditions 15 -25 watts.

So for instance my JVC HU says 250 X 4 (watts). I would bet it truely puts 15 watts to a speaker, not the 62.5 that it says right on the face plate.

No4x4Yet

There should be some grommets on the firewall your car go through. If not youll need to get some. A wire agaisnt bare metal will wear cover off and short over time.

That only makes it worse. I was just sighting the best case. Being the the speaker were so big the deck may over work itself trying to power it.

Anywany glad you sucked it up OP.

Bubbasgoped

I found a perfect grommet at the hardware store $.15! I also techflex all my power cables.

Nick318

Make sure you put an inline fuse on the pos wire, the closer to the battery the better. Also, the RCA cables, keep them away from any positive wires. You could get interference, and get to listen to a really annoying high pitch. Good luck on the install, it shouldn't take you too long. Just be careful when pulling apart the interior not to break any of those stupid plastic clips. Not very expensive, but kind of annoying.