Daniel M. from Delmont, PA, initially tricked out his 2002 Mercury Cougar with a new head unit from Kenwood and some Infiniity Kappa 6"x8" speakers in his front doors and rear side panels. But then he noticed that "the aftermarket speakers were not powered correctly, leading to volume inconsistencies."  After a few months, he returned to Crutchfield for help picking up "everything I would need to make my car sound as good as I wanted it to sound."

So how do you get better audio performance when your speakers are underpowered? You add an amp. And if you want bass? Just bring in a sub or two. And they'll need some electrical power, so don't forget the wiring kit.

Items installed:

• Kenwood KDC-BT948HD CD receiver
• 2 Rockford Fosgate P3D4 Punch P3 12" subwoofers with dual 4-ohm voice coils
• 2 Kicker DX500.1 mono amplifiers
• Kicker DX400.4 4 -channel amplifier
• 2 pairs of Infinity Kappa 682.9cf 6"x8" speakers
• Kicker 1/0-gauge multi-amp wiring kit elements, including power cable, distribution block, and fuse holder
• Fierce Audio sealed dual 12" subwoofer enclosure
• Kicker RCA cables
• Rockford Fosgate speaker wire

A pair of subs and a box

Rounding out your sound means adding some low end, and Daniel did just that with a pair of 12" Punch P3 subwoofers from Rockford Fosgate, which offer dual voice coils for system-building flexibility. A sealed enclosure from Fierce Audio ensured the subs deliver tight, punchy bass. In fact, "the versatility of the subwoofers" is the first thing Daniel shows people about this installation.

Amps, amps, amps!

Daniel also picked up not one, not two, but three amps for his system. A pair of Kicker mono 500-watt amps — one for each of his new 12"  subwoofers — and a Kicker 400-watt 4-channel amp to fuel the Infinity Kappa speakers in the front doors and rear side panels. He chose the products based on "a combination of prior experience and brand reputation."  The Infinity speakers can handle up to 100 watts RMS, so overpowering them was not going to be an issue.

Totally wired

Of course, having three amps requires some heavy-duty wiring, which is where something like the Kicker multi-amp wiring kit comes in handy. 1/0-gauge wire is as thick as it gets, and Daniel said "adapting everything to fit the power wire" was the most difficult part of this installation. He ran the RCA cables, speaker wire, and the turn-on lead under the trim panel on the passenger side of his Cougar, and the power wire down the driver's side.

"I had to remove the rear seats to hide the wire once I reached the back of the car," Daniel tells us. Here's the finished installation in his car:

Daniel tells us that while he thinks his Kenwood head unit is "awesome," he's considering an upgrade to a double-DIN (4' tall) Kenwood DVD receiver with navigation, as well as a better battery and alternator ground for more consistent power.

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Vehicles in the Custom Car Showroom are submitted by customers and fans, and edited by Crutchfield writing staff. You can find more of these articles on the Showroom main page.