Adding an amplifier to the stock radio

[Reseller]

I am curious if anyone has added a amplifier to stock radio I am sure someone has. I am looking for how to get through the firewall and where to connect a step down converter.

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[kevman65]

www.crutchfield.com

There are plug and play units for JL/JT.

 

[Klicht87]

I believe there is a grommet behind/under the brake booster that people use. Run the power wire from the battery (left side) open up that cable-way along the backside and the grommet is on the driver's side somewhere. Haven't done it myself but I've seen a few videos.

 

[JTS260]

Just installed an amp and LC2i pro this past week and followed this video almost exclusively

the grommet is shown in the vid - it’s under the driver side dash on the upper left side. I brought my power wire in there and ran it back behind the rear seat.

that video is super helpful and very detailed. I have the base radio in my Sport and followed this step by step. Biggest hassle was trying to mount the amp; video makes the wiring very clear. I set up a RF R500X1 amp, LC2i pro and fox acoustics ported box with a 10” Memphis sub. Sounds incredible

 

[Average Oregonian]

PAC Audio AmpPRO. There’s no need for a LOC.

 

[JTS260]

The AmpPro looks awesome but couldn’t justify the $$. The LOC wasn’t too difficult to tie into the soundbar speakers (even for an audio noob like me)

 

[Average Oregonian]

The AmpPro looks awesome but couldn’t justify the $$. The LOC wasn’t too difficult to tie into the soundbar speakers (even for an audio noob like me)

It certainly works but the AmpPro is likely the best option for a painless flat incoming signal. A normal LOC may be a repeater for low freq. roll-off, high volume roll-off, any built-in EQ or phase shifts, etc. That said, I believe the AmpPro requires full amplification of all speakers if utilized on a base / non-Alpine system.

These days, I think it almost always makes sense to go fully amplified with an integrated DSP amp; a quality tune on the DSP makes an absolute world of improvement. A class D DSP 5 channel has very low power input requirements and can power all speakers plus a sub and really wake up just about any speaker, even stock, with the right tune. Higher-end ones designed for OEM integration can take the place of the LOC or AmpPro as well, as they can take high-level inputs and flatten/de-equalize the signal.

If the main goal is adding a sub output on an otherwise stock base system without needing DSP or EQ capabilities, a nice LOC is probably the way to go. The LC2i is definitely a nice one.

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