Product Description
This Bluetooth Amplifier combines a compact 4-channel amplifier with a Bluetooth audio receiver. It streams music from your phone or tablet to your car's speakers and can be used with or without a radio, which makes it a simple way to add modern sound while keeping an original radio in the dash.
Features
- 180 watts total (45 watts x 4 channels)
- Wireless Bluetooth streaming from any Bluetooth device
- Auxiliary and pre-amp inputs
- Current sensing inputs
- Mutes automatically for incoming calls
- Works with 2 or 4 speakers, with or without a radio
- Compact 5 x 5 x 2 inch size that hides behind the dash
With or Without a Radio
Without a radio, connect two or four speakers directly to the amplifier and control your music from your phone. With a radio, connect it through an amplifier interface: you keep all normal radio functions, and when Bluetooth starts playing, the current sensing mutes the radio output and plays your streamed audio.
Keep the Original Radio
Many owners want to keep the factory radio for its looks. Because the amplifier is small and does its work out of sight, you can leave the original radio in place and still stream music.
Calls
When a call comes in on your phone, the amplifier mutes so you do not miss it.
Range
Keep your phone in the cabin. Bluetooth range is limited, and the manufacturer lists it at about 30 feet.
Installation
The 5 x 5 x 2 inch case mounts almost anywhere, under the dash or seat. Use a fused power lead, a solid ground and keep wiring away from moving parts.
Speakers
For the best result, pair the amplifier with fresh speakers. Old paper cones may not handle the extra power. A dual voice coil dash speaker gives stereo from one location.
Questions?
Call us at 574-226-6676 with your vehicle and current setup.
Why Add Bluetooth This Way
Replacing a factory radio is not always the right choice for an original car. This amplifier adds streaming without changing the dash, and it can be removed later without a trace.
Pre-Amp and Aux Inputs
Besides Bluetooth, the amplifier accepts a wired auxiliary source and a pre-amp signal, so other devices can play through the same speakers.
Two or Four Speakers
Use two speakers for a simple front setup or all four channels for front and rear sound. Four channels with a fader-style balance give the fullest result in most cabins.
Hidden Installation
Because the amplifier is small, it can sit under a seat, behind a kick panel or under the dash, where it stays out of sight and leaves the interior looking original.
Getting Help
If you are not sure how to connect the amplifier to your radio or speakers, call us with your vehicle and current setup before ordering.
Bluetooth Amplifier FAQ
Do I need a radio?
No. It works with or without one.
How much power?
180 watts, 45 watts x 4.
How big is it?
5 x 5 x 2 inches.
What happens when a call comes in?
It mutes automatically.
Can I keep my original radio?
Yes, connected through an amplifier interface.
KHE-300 specifications
- Ken Harrison KHE-300 vehicle-specific classic car radio (fitment per listing title)
- Bluetooth wireless audio streaming (music streaming; not all listings advertise hands-free calling)
- Front USB input for MP3 files
- Front mini SD card reader
- PLL synthesized AM/FM tuner with automatic mono/stereo
- 6 AM and 6 FM presets; preset scan and auto store
- Manual up/down tuning, seek and auto scan
- Separate bass and treble; front/rear fader; left/right balance
- LCD display with blue illumination and clock
- Auto antenna power lead; RCA pre-outs; rear auxiliary input
- 200 watts system power (50 watts × 4 channels)
- 12 V negative-ground (6 V / positive-ground cars need a converter)
KHE-300 wiring and tech tips
Ken Harrison manuals recommend installation by an auto radio specialist if you are not comfortable with 12 V work.
- Confirm the vehicle is 12 V negative ground before connecting (use a converter for 6 V or positive-ground cars).
- Disconnect a battery terminal before wiring.
- Use a fused power source and a clean chassis ground.
- Bench-test the radio before final mounting when practical.
- Connect the antenna lead and the auto-antenna power wire only if your antenna is compatible.
- Match speaker polarity; do not short speaker leads to ground.
Application: classic car (confirm fitment from the product title before install). Vintage Car Radio does not offer installation.
KHE-300 manuals
Use the Ken Harrison owner’s sheet packed with the radio for the official wiring diagram and controls. Additional classic-radio manuals are listed on our Manuals page when available.
Vintage Car Radio does not offer installation.
Warranty
Warranty coverage for Ken Harrison radios is handled per the manufacturer’s and seller’s published terms for your purchase. Contact Vintage Car Radio at 844-802-4499 or 574-226-6676 with your order number for assistance.
Vintage Car Radio does not offer installation.
FAQ — classic car KHE-300
Will this fit my dash?
Ken Harrison radios are vehicle-specific. This listing is for classic car as titled—compare your opening and faceplate to the photos.
Does Bluetooth include hands-free calling?
KHE-300 listings emphasize wireless audio streaming. Confirm calling support on the product page for your exact SKU.
Do you install?
No.
Need help?
844-802-4499 or 574-226-6676.
Specs
Wiring / Tech Tips
Manuals
Warranty
Warranty
Warranty coverage for Ken Harrison radios is handled per the manufacturer’s and seller’s published terms for your purchase. Contact Vintage Car Radio at 844-802-4499 or 574-226-6676 with your order number for assistance.
Vintage Car Radio does not offer installation.
