Pioneer wired remote input

[[email protected]]

Hi, i'm hoping someone here can help me. Does anybody know if the
pioneer wired remote interface with the 3.5mm jack is a resistive based
one, i.e. pressing different buttons alters resistance values to the
remote interface

Is so has anyone got the resistance values for this. I am trying to
build a advanced interface to a vauxhall using a PIC to control the
system via this remote interface, and it would detect double clicks,
triple clicks, etc. to change volume, track skip, album skip etc. I
would be happy to share details of this once I complete this project.

I have already reversed engineered the vauxhall resistor values, if
anyone needs them, they are as follows and are measured from GND.

Button Resistance
--------------------------------
None 3.61k
Vol+ 162.7R
Vol- 81.2R
Source 282.7R
Track+ 458R
Track- 786R
Preset 1.465k

Thanks for the help...

[[email protected]]

I had an email from someone asking me further details on this, can you
email me again but tell me your email address, as your reply to email
address didnt work...

I managed to get hold of the pioneer resistances, as follows...

Button Resistance E12 (5% tol)
------------------------------------------------------------------------------


0k 0
Source/Off 2.2k 2k2
Mute 4.4k 2k2 + 2k2
6.6k 2k2 + 2k2 + 2k2
Track+ 8.8k 2k2 + 2k2 + 2k2 + 2k2
Track- 12.1k 2k2 + 2k2 + 2k2 + 2k2 + 3k3
Volume+ 16.8k 2k2 + 2k2 + 2k2 + 2k2 + 3k3 + 4k7
Volume- 23.6k 2k2 + 2k2 + 2k2 + 2k2 + 3k3 + 4k7 + 6k8
33.6k 2k2 + 2k2 + 2k2 + 2k2 + 3k3 + 4k7 + 6k8 + 10k
Band 48.6k 2k2 + 2k2 + 2k2 + 2k2 + 3k3 + 4k7 + 6k8 + 10k + 15k


Hope that helps...
Kash.