Radar Detector Volume vai CDR220?

[mwh98]

Has anyone explored the possibility of running the line out volume of their radar detector thru the stock head unit (CDR220) usining the "telephone" function? The HU has a line in with a max rating of 8 vdc. My SR7 has a audio out jack that requires an amplified speaker (audio lines plus 12 vdc). It loooks like I'm trying to mix a line level signal with an amplified signal, so I've contacted Escort/Passport for some guidance on their end.

Does anyone have the phone fx enabled thru their HU? The manual states that you can hear the other party thru the stereo speakers, wich is what I want for the detector. But do you need to manually togle the phone fx each call, or do you set it up once and the phone rings thru the speakers as long as the HU is on (and is that over the music, or does it mute the tunes so you can hear the phone ring)?

If this works, the radar detector audio would be heard thru the speakers.

I'll let ya know what I hear from Escort, but would appreciate any experience or comments or with this idea.

Thanks

Mark
2001 Seal Grey 986
San Antonio, Tx

[NickCats]

mwh98,

Please let me know what you hear back from Escort.

I have a Escort Solo S2 Cordless and a CDR-220.

I would love to have the ability to route the audible warnings throught the speakers.

I found that I can barely hear the radar with the top down and the radio on...

Right now I have the radar mounted on the windshield right above the speedo so I can see the visuals but I would much rather have my eyes on the road than on the radar detector

Great idea !

Nick

[ukchris]

I have wondered about this but for my GPS rather than the radar detector, I'd like to hook the audio in to the phone kit but I don't know how I'd send the mute signal. I wonder if there's some sort of relay that could be activated by the audio signal, is it a voltage of some sort that could be monitored and used to activate the mute?

[mwh98]

I've also contacted Becker for specs on exactly what the HU does and how. It will be interesting to see what their response is.

The usual MO is "due to liability issues, we can not comment on how the two units would interact. The HU was not designed for this".

I'll keep ya in the loop as to what I find.

Mark
2001 Seal Gray 986
San Antonio, Texas

[ukchris]

I've been looking for a vox circuit switch could detect the audio and use the signal to mute the head unit with a relay and pipe it through the phone kit.

This is the circuit I want to try and make http://www.aaroncake.net/circuits/vidswitch.htm but I don't know where to get the parts from, the online catalogs are kind of confusing. Any help would be welcome!

I started a thread here on PPBB too, no replies yet though.

Chris.

[70Sixter]

I had the same thought about input of cell phone without the Porsche kit. Even bought the Becker cables. Still cannot figure out how on my CDR23. I got the attachment from Becker with the 220 instructions if this is helpful to anyone.

[ukchris]

Did they sell you the kit as being for the CDR23?

I've just ordered the transistors and so on to make up a vox circuit, I'll report back when I see how things go. I still need the Becker cable but that can wait until I know the circuit works.

[70Sixter]

Originally Posted by ukchris

Did they sell you the kit as being for the CDR23?

I've just ordered the transistors and so on to make up a vox circuit, I'll report back when I see how things go. I still need the Becker cable but that can wait until I know the circuit works.

They sold me a CDR23 cable kit. And I have the instructions for the 23.

Not sure about the cables for the 220s. I just posted the 220 instructions as potential help for some smart guy that might also help me!

[ukchris]

Would you mind posting or sending me the instructions for the CDR23 phone cable?

Chris.

[70Sixter]

No problem. It is attached or available from Becker below.

http://www.beckerautosound.com/Porsche/Porsche%20Menu.html

BTW there are TSBs for install of cell phone kits.