6878215A01
4-12 Options and Accessories Installation Memory and Three-Day Secure Key Retention Option
4.5.2 Adapter Cable
If you are planning on installing an APX mobile radio as a replacement for an ASTRO Spectra radio,
the following adapter cables are available:
NOTE: The adaptor cables can only be connected to J2 in the rear of the transceiver.
Use the HKN6158_ audio adapter kit cable if your vehicle was formerly wired for an ASTRO Spectra
or ASTRO Spectra Plus radio, and used the rear cable pins as shown in Figure 4-12.
Figure 4-12. Rear Accessory Connector Audio Configuration
Use the HKN6159_ data adapter kit cable if your vehicle was formerly wired for an ASTRO Spectra
or ASTRO Spectra Plus radio, and used the rear cable pins as shown in Figure 4-13.
Figure 4-13. Rear Accessory Connector Data Configuration
You must attach the correct adapter. Installing the wrong adapter may cause damage to the data
communication circuitry inside your radio. If you are unsure of the pinout of your former wiring
harness, please consult your ASTRO radio installation technician.
4.6 Memory and Three-Day Secure Key Retention Option
For the installation or removal of the Memory or 3-Day Secure Key Retention Options
(MHLN6999_ and MHLN7000_), see the APX Mobile Basic Service Manual (6875964M01).
NOTE: The Three-Day Secure Key Retention Option is not applicable for APX 2500/APX 4500.
Part Number Description
HKN6158_ Cable, Audio Adapter Kit
HKN6159_ Cable, Data Adapter Kit
VIP OUT 2
IGNITION
SPKR
LO -
N.C.
GND SPKR
HI +
SWB+
EMER
N.C.
VIP OUT 1
MIC HI
N.C.
PTT
DISC.
AUD
N.C.
54
3
21
9
1011121314
15
768
VIP OUT 2
IGNITION
SPKR
LO -
CTS-ASTRO
RTS_DCE
DIG
GND
SPKR
HI +
SWB+
EMER
BUS-
VIP OUT 1
RTS-ASTRO
CTS_DCE
BUSY
TX-ASTRO
RX_DCE
RX-ASTRO
TX_DCE
BUS+
54
3
21
9
1011121314
15
768
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