Ads sr1 for emergency

[todda323]

Hello all, new here. I was considering adding an ads sr1 as an emergency back up to an mcs 2000 mod II. My quesion is regarding audio out. I wish to keep the external speaker live. Can I tap in to the accessory audio while keeping the speaker live without causing any voltage issues?
The RJ45 jack on the front panel provides all radio interface
connections. Looking into the front of the connector, the pin
functions, from left to right, are as follows:
8 - Power in (typically used with radios that provide a +8v output)
7 - Unused
6 - Audio in (from radio’s speaker output)
5 - Push-to-talk output
4 - Ground
3 - Audio out (to radio’s microphone input)
2 - Ground
1 - Squelch / COR input
The Squelch / COR input is optional. When this signal is available from the radio
(usually from an accessory or data connector) it allows the repeater to be
operated with the VOX delay.
The PTT mode must be set appropriately for the radio being used. Most base
station and mobile radios use a separate PTT input. Many handheld radios, with
the notable exception of most Kenwood models, combine the microphone and
PTT signals. For combined PTT models, DIP switch 4 in the ADS-SR1’s battery
compartment must be set to the ON position. All other radios should have
switch 4 set to OFF.
Do not install batteries when using the optional RJ45 power input pin.

Audio Levels
For good performance, it is important to set both receive and transmit audio
levels correctly. The receive audio level is set using the radio’s volume control.

Any help is greatly appreciated and thanks in advance.

[todda323]

Help please?

[d119]

Get the pinout for the MCS 2000 off of the batlabs.com main site, and work it out!

Simplex repeaters are more of a hassle than they are worth in my opinion.