4 Channel PAC OEM-2 Line Output Converter:

http://www.pac-audio.com/products/oem1.htm (last product)

The OEM-2 is the one-piece solution for replacing the radio or adding an amplifier to any factory system. By isolating the system, providing a 4 channel signal level converter, an internal remote trigger and a common ground speake conversion circuit, the OEM-2 is truly a multi-problem solution.
Adjusts up to 4 channels of signal input from 2 to 60 watts
The OEM-2 transformer isolates the input and output circuits, blocking DC noise and preventing snap, crackles and pops typical in other products.
Sealed potentiometers prevent circuit-induced distortion and signal drift.
Allows for conversion of floating ground head units to match common ground speakers systems.
Provides an internal trigger to turn on a 2 amp/12 volt power line with a 1second delay for an amplifier or power antenna.
Deliver linear frequency response /-0.5 dB from 20 to 20,000 Hz, for unparalleled sound quality.
Keeps your inventory under control.



METRA 7 BAND EQUALIZER / 100W AMP
100 WATTS MAX POWER
7 BAND ADJUSTABLE EQUALIZER
FADER CONTROL
ON/OFF BYPASS
HEAVY DUTY HEAT SINKS
ALLOWS 2 OR 4 SPEAKER HOOKUP
FREQUENCY RESPONSE: 30 - 40KHz
SEPARATION: 50dB STEREO
IMPEDANCE: 4 OR 8 OHM
HIGH LEVEL INPUT
DIMENSIONS: 4-11/16"(W) x 1-1/8"(H) x 4-3/4"(D)

$30.00 shipping already included.