TL HU Primary Wiring
#1
TL HU Primary Wiring
Hi All,
A while back I posted my plan to install a TL HU, with 2 front speakers only, in my Austin Healey. I expected a simple wiring installation but am a little confused after reviewing the connector-wiring diagram. I don’t want to blow the unit and would appreciate any clarification on the following:
1. A1 - ORN - Radio Switched Power - Is this 12V power with the Ignition ON?)
2. A2 WHT/RED - ACC (Main Stereo Power Supply) - What does this do and is it required?
3. A3 - GRN/RED - Radio Remote Switch - Is this the steering wheel switch?
4. A4 - BLU - Security Input - Is this the constant 12V input required for the security system?
I would appreciate any help?
All the best,
Ray
A while back I posted my plan to install a TL HU, with 2 front speakers only, in my Austin Healey. I expected a simple wiring installation but am a little confused after reviewing the connector-wiring diagram. I don’t want to blow the unit and would appreciate any clarification on the following:
1. A1 - ORN - Radio Switched Power - Is this 12V power with the Ignition ON?)
2. A2 WHT/RED - ACC (Main Stereo Power Supply) - What does this do and is it required?
3. A3 - GRN/RED - Radio Remote Switch - Is this the steering wheel switch?
4. A4 - BLU - Security Input - Is this the constant 12V input required for the security system?
I would appreciate any help?
All the best,
Ray
#3
Thanks for your very desirable suggestion. If it were possible I would go that route, however, this is a 1964 British sports car that came with an AM radio at best…1 power, case ground, and speaker line.
Although I expect I need a switched power line, ground, and constant power line (for security system) I would like to verify what A2, A3, and A4 are, and, if they are also necessary.
Thanks again for your response,
Ray
Although I expect I need a switched power line, ground, and constant power line (for security system) I would like to verify what A2, A3, and A4 are, and, if they are also necessary.
Thanks again for your response,
Ray
#5
I purchased the car new in ’64 and traveled throughout the country. Over the past decade I totally restored the car and now plan to drive from NJ to Florida, Arizona, and California …and back. I have converted the car from generator to alternator and made a few other modifications to secure added reliability. My last step is to be able to listen to something during the hours on the road.
Originally, I considered upgrading my AM radio to a period AM/FM and install a satellite receiver. However, when looking at the cost/benefit, the benefits came up short.
One day when driving my TL, I glanced at the HU and realized it had most of what I wanted…AM/FM, CD, Tape. As with all my modifications, installing a modern unit would require the change to be reversible and the original vertical dash would have to be severely altered to accommodate the TL’s HU. After reviewing my options, I purchased a TL HU from eBay and replicated the vertical dash as closely as possible to allow for the HU’s accommodation. Now I am at the installation stage.
I am looking for a simple installation (A2-Switched Power, A10-Constant Power, A9-Dash Light input, and (2) front speaker connections) and, after reviewing the “A” connector; want to verify my understanding before I blow the unit. Original I thought A1 provided power to the radio, however, now I believe it is A2. At first glance I thought A4 required a constant voltage for the security system and now I think it is A10. Presently I am not sure whether A9 or A19 should be connected to my dash light circuit.
Well, that’s the story. Not quite an audiophile but more a tinkered looking to hear more then my self think.
Sorry for the long winded answer. Any help verifying my connection understanding would be appreciated.
All the best,
Ray
Originally, I considered upgrading my AM radio to a period AM/FM and install a satellite receiver. However, when looking at the cost/benefit, the benefits came up short.
One day when driving my TL, I glanced at the HU and realized it had most of what I wanted…AM/FM, CD, Tape. As with all my modifications, installing a modern unit would require the change to be reversible and the original vertical dash would have to be severely altered to accommodate the TL’s HU. After reviewing my options, I purchased a TL HU from eBay and replicated the vertical dash as closely as possible to allow for the HU’s accommodation. Now I am at the installation stage.
I am looking for a simple installation (A2-Switched Power, A10-Constant Power, A9-Dash Light input, and (2) front speaker connections) and, after reviewing the “A” connector; want to verify my understanding before I blow the unit. Original I thought A1 provided power to the radio, however, now I believe it is A2. At first glance I thought A4 required a constant voltage for the security system and now I think it is A10. Presently I am not sure whether A9 or A19 should be connected to my dash light circuit.
Well, that’s the story. Not quite an audiophile but more a tinkered looking to hear more then my self think.
Sorry for the long winded answer. Any help verifying my connection understanding would be appreciated.
All the best,
Ray
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