Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18457
Not my thread about the touchscreen/DVD I'm afraid.
I was referring to the cable itself, not the connector on the iPod.
Look at something like the Griffin AutoPilot perhaps? Belkin used to do a very nice integrated charger and audio amplifier, but apparently not any more 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
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22nd Jan 2010 11:24 am
BHH
Member Since: 19 Jan 2010
Location: Co. Antrim, N. Ireland
Posts: 208
Martin,
Sorry, my mistake, I meant the Woodmans Video Post
Brian
22nd Jan 2010 11:33 am
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18457
OK, get a 3.5mm stereo extension lead for the audio, and something like the Belkin Micro USB charger for the USB power 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
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22nd Jan 2010 11:37 am
buellbeast
Member Since: 30 Jul 2008
Location: Exile
Posts: 1885
You could get the ACM lead from TLO and cut the connector off the end, these must have the aux wiring to get the sound into the car. Not sure on which wire is which within the lead, i do have the pinouts for the iphone though and i dont suppose it would be difficult to do a continuity test on the wires in the cable to find out what was what.
Pin Signal Description
1 GND Ground (-), internally connected with Pin 2 on iPod motherboard
2 GND Audio & Video ground (-), internally connected with Pin 2 on iPod motherboard
3 Right Line Out - R (+) (Audio output, right channel)
4 Left Line Out - L(+) (Audio output, left channel)
5 Right In Line In - R (+)
6 Left In Line In - L (+)
8 Video Out Composite video output (only when slideshow active on iPod Photo)
9 S-Video Chrominance output for iPod Color, Photo only
10 S-Video Luminance output for iPod Color, Photo only
11 GND If connected to GND the iPhone sends audio signals through pin 3-4, otherwise it uses onboard speaker.
12 Tx ipod sending line, Serial TxD
13 Rx ipod receiving line, Serial RxD
14 RSVD Reserved
15 GND Ground (-), internally connected with pin 16 on iPod motherboard
16 GND USB GND (-), internally connected with pin 15 on iPod motherboard
17 RSVD Reserved
18 3.3V 3.3V Power (+)
Stepped up to provide +5 VDC to USB on iPod Camera Connector. If iPod is put to sleep while Camera Connector is present, +5 VDC at this pin slowly drains back to 0 VDC.
19,20 +12V Firewire Power 12 VDC (+)
21 Accessory Indicator/Serial enable
Different resistances indicate accessory type:
1kOhm - iPod docking station, beeps when connected
10kOhm - Takes some iPods into photo import mode
68kOhm - makes iPhone 3g send audio through line-out without any messages
500kOhm - related to serial communication / used to enable serial communications Used in Dension Ice Link Plus car interface
1MOhm - Belkin auto adaptor, iPod shuts down automatically when power disconnected Connecting pin 21 to ground with a 1MOhm resistor does stop the ipod when power (i.e. Firewire-12V) is cut. Looks to be that when this pin is grounded it closes a switch so that on loss of power the Ipod shuts off. Dock has the same Resistor.
22 TPA (-) FireWire Data TPA (-)
23 5 VDC (+) USB Power 5 VDC (+)
24 TPA (+) FireWire Data TPA (+)
25 Data (-) USB Data (-)
26 TPB (-) FireWire Data TPB (-)
27 Data (+) USB Data (+)
Pins 25 and 27 may be used in different manner. To force the iPod 5G to charge in any case, when USB Power 5 VDC (pin 23) is fed, 25 must be connected to 5V through a 10kOhm resistor, and 27 must be connected to the Ground (for example: pin 1) with a 10kOhm resistor.
iPod 5G can also be forced to charge by attaching the data + and the data - pins to the 5v via a 10k Ohm resistor ( BOTH PINS) and connecting pin 16 to the 5v (ground). (Confirmed working with iPod 5G 20GB)
To charge an iPhone 3G / iPod Touch 2nd gen, usb data- (25) should be at 2.8v, usb data+(27) should be at 2.0v. This can be done with a few simple resistors: 33k to +5v (23) and 22k to gnd(16) to obtain 2v and 33k to +5v and 47k to gnd to obtain 2.8v. This is a notification to the iphone that it is connected to the external charger and may drain amps from the usb.
28 TPB (+) FireWire Data TPB (+)
29,30 GND FireWire Ground (-)
22nd Jan 2010 12:06 pm
BHH
Member Since: 19 Jan 2010
Location: Co. Antrim, N. Ireland
Posts: 208
That ought to work, when paired with a USB charger that fits the 12V socket (available for a few quid from Tesco etc) - the USB is merely for power. Alternatively, buy a complete unit like the Griffin Autopilot.
Whichever you choose, bear in mind that the volume will be below the average level of the radio & CD.Time flies like an arrow; fruit flies like a banana
Member Since: 19 Jan 2010
Location: Co. Antrim, N. Ireland
Posts: 208
DrLex,
Yes should do, but I still want to cut off the USB plug & hard wire it behind the dash, but not sure which cores to use the Aux shouldn't be a problem though
Brian
22nd Jan 2010 5:28 pm
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18457
Read my earlier post - get a 12V to USB charger then you don't have to worry about doing the 12V to 5V conversion to hardwire the cable yourself.06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
As Martin says, just get a car USB adaptor and gut it to attach behind a panel.
If you really want to lop the end off a USB cable, the outer two rails on the 'A' type connector carry the voltage; the inner two the data.
Picture to complete the electronics class:
Click image to enlarge
Time flies like an arrow; fruit flies like a banana
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