I have seen the postings on blue tooth. But none of those deal with it as the guy in this youtube clip: https://www.youtube.com/watch?v=ZI0Vp-8TU54
In a nutshell, the small bluetooth receiver is soldered into the stereo, that has no aux port. Actually the bluetooth unit is connected in between the audio signal receiver and the internal amplifier. As soon as the bluetooth unit receives a signal the radio signal is blocked and your spotify signal is sent through to the amplifier. As soon as you quit spotify on you phone, immediately the radio signal is being let through again. It seems a very simpel procedure....as long as you know which points to solder the bluetooth onto. I am very curious if anyone has it figured it out already. It could potentially be very easy as the amplifier of the caddy is already physically in a separate case..
Yeah, like I posted in the recent bluetooth thread. Easy to do. You need to splice it in between the volume pot center tab and the radio.
Did this on my ´84 Town Car.
Thanks, does that setup indeed disconnect the radio signal as soon as a bluetooth signal is detected?
Yes, it does.
Switches pretty fast: I had navigation activated on the cell and every time it sent an audio signal to change the route the radio program got interrupted and the navigation was presented via the stereo. Then it switched back to radio program. Pretty nice.
Quote from: Hillbillycat on October 11, 2021, 07:02:58 AM
Yeah, like I posted in the recent bluetooth thread. Easy to do. You need to splice it in between the volume pot center tab and the radio.
Did this on my ´84 Town Car.
Just curious about this. It works on later model radios, but would it work on a radio that uses vacuum tubes?
Rick
Yes, doesn´t matter if transistorized or vacuum tube.
Just a "WARNING" note these modules are for "stereo in/out setups" so yes either solid-state or vacuum tubes would work, but are not designed for "mono" applications as most of the older AM radios are.
Is there some sort of app that goes with these that presumably has some settings on it? Perhaps a mono stereo mode among other options?
In my '74 Eldorado, I went a different route. I installed an external amplifier that has a Bluetooth connection. This does two things: gets my Bluetooth connection that I wanted and allows me to switch the speakers out to modern 4 ohm speakers. It retains all the function of the stock radio also.
Interesting. So this external amp is just a power amplifier, right? How did you connect it to the stock radio?
Quote from: Hillbillycat on October 14, 2021, 11:28:48 AM
Interesting. So this external amp is just a power amplifier, right? How did you connect it to the stock radio?
It has line level inputs with adjustable gain controls. When there is nothing being streamed with the Bluetooth connection, it automatically switches to the line level input.
Cool. Smart design and a good option when you don´t want to hack up your stock unit.
Does running a stock vintage radio into line inputs load it properly? I know we are not talking area rock concert power levels here but especially some tube amps can get pretty angry if they are not properly loaded. A line input on consumer gear is most likely going to be 10K ohms. An amp expecting a speaker output isn't going to notice that at all.
I know they make speaker to line adapters for car audio that have resistors in them. I would imagine the resistors are mostly to drop the level but I would think would present some load to the amp too. Probably depends on the design, If you were putting one of those on in addition to a speaker which I think is common practice in car audio you would not want to add any extra load so maybe one that puts some load doesn't exist?
With the power levels we are talking about here you could probably just stick a 5w resistor of a matching or maybe a little higher value to the original speaker(s) across the new amp input and the radio would not really know anything changed.
Quote from: TJ Hopland on October 15, 2021, 12:20:36 PM
Does running a stock vintage radio into line inputs load it properly? I know we are not talking area rock concert power levels here but especially some tube amps can get pretty angry if they are not properly loaded. A line input on consumer gear is most likely going to be 10K ohms. An amp expecting a speaker output isn't going to notice that at all.
I know they make speaker to line adapters for car audio that have resistors in them. I would imagine the resistors are mostly to drop the level but I would think would present some load to the amp too. Probably depends on the design, If you were putting one of those on in addition to a speaker which I think is common practice in car audio you would not want to add any extra load so maybe one that puts some load doesn't exist?
With the power levels we are talking about here you could probably just stick a 5w resistor of a matching or maybe a little higher value to the original speaker(s) across the new amp input and the radio would not really know anything changed.
I have not had any issues at all with the input level on mine.